Study to Investigate the Efficacy and Safety of Sofosbuvir/Velpatasvir (SOF/VEL) Fixed-Dose Combination (FDC) and Sofosbuvir/Velpatasvir/Voxilaprevir (SOF/VEL/VOX ) FDC for 12 Weeks in Adults With Chronic Hepatitis C Virus (HCV) Infection

September 29, 2021 updated by: Gilead Sciences

A Phase 3b Multicenter, Open-Label Study to Investigate the Efficacy and Safety of Sofosbuvir/Velpatasvir Fixed-Dose Combination and Sofosbuvir/Velpatasvir/Voxilaprevir Fixed-Dose Combination for 12 Weeks in Subjects With Chronic HCV Infection

The primary objectives of this study are to evaluate the antiviral efficacy, safety, and tolerability of therapy with Sofosbuvir/Velpatasvir (SOF/VEL) Fixed-Dose Combination (FDC) and Sofosbuvir/Velpatasvir/Voxilaprevir (SOF/VEL/VOX ) FDC in participants with chronic HCV infection.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
87

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Korea, Republic of
      • Busan, Korea, Republic of, 49241
        • Pusan National University Hospital
      • Busan, Korea, Republic of, 47392
        • Inje University Busan Paik Hospital
      • Busan, Korea, Republic of, 48789
        • Dong-A University Hospital
      • Daegu, Korea, Republic of, 41944
        • Kyungpook National University Hospital
      • Daegu, Korea, Republic of, 42601
        • Keimyung University Dongsan Hospital
      • Daejeon, Korea, Republic of, 35015
        • Chungnam National University Hospital
      • Gwangju, Korea, Republic of, 501-717
        • Chosun University Hospital
      • Incheon, Korea, Republic of, 405-760
        • Gachon University Gil Medical Center
      • Incheon, Korea, Republic of, 21431
        • The Catholic University of Korea, Incheon St. Mary's Hospital
      • Jeonju, Korea, Republic of, 54907
        • Chonbuk National University Hospital
      • Seoul, Korea, Republic of, 03080
        • Seoul National University Hospital
      • Seoul, Korea, Republic of, 03722
        • Severance Hospital
      • Seoul, Korea, Republic of, 05505
        • Asan Medical Center
      • Seoul, Korea, Republic of, 06973
        • Chung-Ang University Hospital
      • Seoul, Korea, Republic of, 08308
        • Korea University Guro Hospital
      • Seoul, Korea, Republic of, 06351
        • Samsung Medical Center
      • Seoul, Korea, Republic of, 07061
        • SMG-SNU Boramae Medical Center
      • Seoul, Korea, Republic of, 05368
        • VHS (Veterans Health Service) Medical Center
      • Seoul, Korea, Republic of, 06591
        • The Catholic University of Korea, Seoul Saint Mary's Hospital
      • Ulsan, Korea, Republic of, 44033
        • Ulsan University Hospital
      • Yangsan, Korea, Republic of, 50612
        • Pusan National University Yangsan Hospital
    • Gyeonggi-D
      • Seongnam-si, Gyeonggi-D, Korea, Republic of, 13620
        • Seoul National University Bundang Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

19 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Key Inclusion Criteria:

  • Chronic HCV infected males and non-pregnant/non-lactating females
  • Treatment-naive or treatment-experienced individuals
  • Non-cirrhosis or compensated cirrhosis at screening

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: SOF/VEL
Participants with chronic HCV infection (genotype 1 or 2), who are treatment-naive or treatment-experienced with interferon (IFN)-based treatments will receive SOF/VEL for 12 weeks.
Drug: SOF/VEL
400/100 mg FDC tablet orally once daily.
Other Names:
  • Epclusa®
  • GS-7977/GS-5816
Experimental: SOF/VEL/VOX
Participants with chronic HCV infection (genotype 1), who are treatment-experienced with nonstructural protein 5A (NS5A) direct-acting antiviral (DAA)-based treatments of at least 4 weeks duration will receive SOF/VEL/VOX for 12 weeks.
Drug: SOF/VEL/VOX
400/100/100 mg FDC tablet orally once daily.
Other Names:
  • Vosevi ®
  • GS-7977/GS-5816/GS-9857

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants With Sustained Virologic Response (SVR) < Lower Limit of Quantification (LLOQ) 12 Weeks After Discontinuation of Study Treatment
Time Frame: Posttreatment Week 12
SVR12 was defined as HCV RNA < LLOQ (i.e., 15 IU/mL) at 12 weeks after stopping study treatment.
Posttreatment Week 12
Percentage of Participants Who Permanently Discontinued the Study Drug Due to an Adverse Event
Time Frame: First dose date up to 12 weeks plus 30 days
First dose date up to 12 weeks plus 30 days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants With SVR < LLOQ 4 Weeks After Discontinuation of Study Treatment
Time Frame: Posttreatment Week 4
SVR4 was defined as HCV RNA < LLOQ (i.e.15 IU/mL) 4 weeks after stopping study treatment.
Posttreatment Week 4
Percentage of Participants With Virologic Failure
Time Frame: Baseline up to Posttreatment Week 12

Virologic failure was defined as:

On-treatment virologic failure:

  • Breakthrough (HCV RNA ≥ LLOQ after having previously had HCV RNA < LLOQ, while on treatment, confirmed with 2 consecutive values), or
  • Rebound (confirmed > 1 log10 IU/mL increase in HCV RNA from nadir while on treatment), or
  • Non-response (HCV RNA persistently ≥ LLOQ through 8 weeks of treatment )

Virologic relapse:

• Confirmed HCV RNA ≥ LLOQ during the posttreatment period having achieved HCV RNA < LLOQ at last on-treatment visit
Baseline up to Posttreatment Week 12
Percentage of Participants With HCV RNA < LLOQ on Treatment
Time Frame: Week 2, Week 4, Week 8, Week 12
LLOQ was 15 IU/mL.
Week 2, Week 4, Week 8, Week 12
Change From Baseline in HCV RNA
Time Frame: Baseline, Week 2, Week 4, Week 8, Week 12
Baseline, Week 2, Week 4, Week 8, Week 12
Number of Participants With Alanine Aminotransferase (ALT) Normalization
Time Frame: Baseline, Week 2, Week 4, Week 8, Week 12
Number of participants with ALT normalization, defined as ALT > upper limit of normal (ULN) (ULN = 43 U/L) at baseline and ALT ≤ ULN, at each visit was presented.
Baseline, Week 2, Week 4, Week 8, Week 12

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Gilead Sciences

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 3, 2020

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 12, 2020

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 12, 2020

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 23, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 23, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 26, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 27, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 29, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2021

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • GS-US-342-5532

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

Qualified external researchers may request IPD for this study after study completion. For more information, please visit our website at https://www.gilead.com/science-and-medicine/research/clinical-trials-transparency-and-data-sharing-policy

IPD Sharing Time Frame

18 months after study completion

IPD Sharing Access Criteria

A secured external environment with username, password, and RSA code.

IPD Sharing Supporting Information Type

  • Study Protocol
  • Statistical Analysis Plan (SAP)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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